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linux/arch/powerpc
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David Gibson 9a94c5793a [PATCH] powerpc: More hugepage boundary case fixes 
Blah.  The patch [0] I recently sent fixing errors with
in_hugepage_area() and prepare_hugepage_range() for powerpc itself has
an off-by-one bug.  Furthermore, the related functions
touches_hugepage_*_range() and within_hugepage_*_range() are also
buggy.  Some of the bugs, like those addressed in [0] originated with
commit 7d24f0b8a5 where we tweaked the
semantics of where hugepages are allowed.  Other bugs have been there
essentially forever, and are due to the undefined behaviour of '<<'
with shift counts greater than the type width (LOW_ESID_MASK could
return non-zero for high ranges with the right congruences).

The good news is that I now have a testsuite which should pick up
things like this if they creep in again.

[0] "powerpc-fix-for-hugepage-areas-straddling-4gb-boundary"

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
History 2005-11-25 22:12:45 +11:00
..
boot [PATCH] ppc boot: replace string labels with numbers 2005-11-18 13:18:16 +11:00
configs powerpc: Move defconfig over and remove remaining arch/ppc64 files 2005-11-18 16:39:08 +11:00
kernel [PATCH] kprobes: Fix return probes on sys_execve 2005-11-23 16:08:39 -08:00
lib powerpc: Fix find_next_bit on 32-bit 2005-11-10 12:01:41 +11:00
mm [PATCH] powerpc: More hugepage boundary case fixes 2005-11-25 22:12:45 +11:00
oprofile [PATCH] Update email address for Kumar 2005-11-13 18:14:10 -08:00
platforms [PATCH] powerpc: update my email address 2005-11-23 21:23:20 +11:00
sysdev [PATCH] powerpc: update my email address 2005-11-23 21:23:20 +11:00
xmon [PATCH] powerpc-xmon-build-fix 2005-11-13 18:14:13 -08:00
Kconfig [PATCH] Remove SPAN_OTHER_NODES config definition 2005-11-18 14:45:54 +11:00
Kconfig.debug [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
Makefile [PATCH] powerpc: remove arch/powerpc/include hack for 64 bit 2005-11-25 22:11:23 +11:00